#1F1144
Closest named color: Dark Indigo (#1F0954). oklch(23.3% 0.091 290.1), rgb(31, 17, 68).
Aa
White text reads best on this color (17.18:1).
About this color
#1F1144 is a very dark, moderately saturated purple. In OKLCH its lightness is 23%, its chroma 0.091 and its hue 290°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Indigo (#1F0954), ΔE 0.032 away. White text reads best on it, at 17.18:1.
| Hue family | Purples |
| Lightness | very dark (23%) |
| Chroma | moderately saturated (0.091) |
| Temperature | in between |
| Nearest name | Dark Indigo (#1F0954) |
| Black text | 1.22:1 |
| White text | 17.18:1 |
Values
| HEX | #1F1144 |
| RGB | rgb(31, 17, 68) |
| HSL | hsl(256, 60%, 17%) |
| OKLCH | oklch(23.3% 0.091 290.1) |
Contrast
WCAG 2 contrast ratios are the conformance target: AA needs 4.5:1 for body text and 3:1 for large text, AAA needs 7:1. APCA Lc values are supplementary guidance from the WCAG 3 drafts.
| Pair | WCAG 2 | Result | APCA | APCA guidance |
|---|---|---|---|---|
| White text on #1F1144 | 17.18:1 | AAA | Lc -106.2 | Preferred for body text |
| Black text on #1F1144 | 1.22:1 | Fails | Lc 0.0 | Not readable |
| #1F1144 text on white | 17.18:1 | AAA | Lc 103.8 | Preferred for body text |
| #1F1144 text on black | 1.22:1 | Fails | Lc 0.0 | Not readable |
Tints and shades
A 50–950 scale built in OKLCH: the hue is held, lightness follows a Tailwind v4-like curve, and every step is kept inside the sRGB gamut. This color sits at step 950.
-
Step 50
50
#F5F4FF
oklch(97.1% 0.015 290.3)
-
Step 100
100
#E9E7FE
oklch(93.6% 0.031 289.8)
-
Step 200
200
#D8D3FF
oklch(88.5% 0.06 290.3)
-
Step 300
300
#BFB5FF
oklch(80.8% 0.104 290.1)
-
Step 400
400
#A18BFF
oklch(70.7% 0.166 290.2)
-
Step 500
500
#8D68FF
oklch(63.2% 0.214 290.2)
-
Step 600
600
#7946F1
oklch(55.5% 0.239 290)
-
Step 700
700
#6735D2
oklch(49.1% 0.222 290.2)
-
Step 800
800
#532EAA
oklch(42.7% 0.185 289.9)
-
Step 900
900
#442C86
oklch(37.7% 0.143 290.1)
-
Step 950
950 (this color)
#1F1144
oklch(23.3% 0.091 290.1)
#1F1144 with color blindness
Simulated with the Machado et al. (2009) model. ΔE is how far the color moves: below about 0.02 you would not notice a change.
| Vision | Seen as | Shift (ΔE) |
|---|---|---|
| Protanopia (no red cones) | #001C46 | 0.050 |
| Deuteranopia (no green cones) | #001A43 | 0.049 |
| Tritanopia (no blue cones) | #131E28 | 0.075 |
| Achromatopsia (no color) | #1B1B1B | 0.091 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1F1144
#1F1144
oklch(23.3% 0.091 290.1)
- #1F1F00
#1F1F00
oklch(23.2% 0.05 109.8)
Analogous
Neighbouring hues, 30° either side.
Split complementary
The two hues beside the complement (150° and 210°).
Triadic
Three hues spaced 120° apart.
Palettes with this color
Curated palettes that contain a color within ΔE 0.04 (OKLab) of #1F1144, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Indigo #1F0954 ΔE 0.032
- Midnight Purple #280137 ΔE 0.047
- Navy Blue #001146 ΔE 0.052
- Very Dark Purple #2A0134 ΔE 0.053
- Dark Purple #35063E ΔE 0.054
- Deep Purple #36013F ΔE 0.060
- Night Blue #040348 ΔE 0.065
- Eggplant #380835 ΔE 0.066
Use #1F1144 in your product
Turn it into light and dark UI roles checked for contrast, then export to Tailwind v4, shadcn/ui, CSS or design tokens.